Still only 24. As others have pointed out this is one of the most prolific goal-scoring seasons from a midfielder in Premier League history.
Technically brilliant especially at getting the ball out of his feet while moving at a clip, and there are some near impossible passes he lays off running into tight spaces that we've started to take for granted, saw a couple of these at least in the Chelsea match in addition, of course, to his goals.
If he improves at all from here in terms of his output or consistency, he will become one of the best midfielders this league's seen.